She sounds way too eager to tell a bunch of teens that they have to kill each other in three days or less. I feel like she could be related to Junko Enoshima. Seems they both like other people's despair.
This could be made into a videogame... if using certain conditions like maybe the game only letting you play like once per 2 hours or whatever so, even if you're unlucky, you'll try as hard as possible. Also, while in the movie the RNG is a bit too hardcore (some objects are 100% useless in combat), you could make some adjustments in a videogame like some options being very simple weapons (knives, spears, bow&arrow, etc) or combat-efficient gadgets (enemy radar, breathing underwater, being outside the bubble for a lot more time, etc)
